NFT Marketplace Demo

This is a basic Next.js app for listing NFTs in a given contract address. The purpose of this repository is to showcase the simplicity of creating your backend endpoints in Buildable and hooking them up to frontend apps.

Usage

To run this app, simply clone this repository and run:

> yarn install
> yarn start

Input

const nodeInput = ({ $trigger, $nodes }) => {
  const { 
    chain = "ETH",
    address = "0xed5af388653567af2f388e6224dc7c4b3241c544",
    pageSize = 12,
    cursor
  } = $trigger.body;

  return {
    method: "GET",
    url: `https://deep-index.moralis.io/api/v2/nft/${address}`,
    params: {
      chain,
      address,
      limit: pageSize,
      cursor
    },
    responseType: "json",
    headers: {
      "Content-type": "application/json",
      "X-API-Key": $trigger.env.MORALIS_API_KEY
    }
  };
};

Run

const axios = require("axios");
const moment = require("moment");

const getRows = (result) => {
  return result?.map(token => {
    const metadata = JSON.parse(token.metadata);

    return {
      collection: token.name,
      name: metadata?.name,
      image: metadata?.image.replace("ipfs://", "https://ipfs.io/ipfs/"),
      contractType: token.contract_type,
      lastSynced: moment(token.synced_at).fromNow()
    };
  });
}

/**
 * The Node's executable function
 *
 * @param {Run} input - Data passed to your Node from the input function
 */
const run = async (input) => {
  verifyInput(input);

  try {
    const { data } = await axios(input);

    const rows = getRows(data.result);

    return {
      rows,
      page: data.page,
      pageSize: data.page_size,
      total: data.total,
      cursor: data.cursor
    };
  } catch (error) {
    return {
      failed: true,
      message: error.message,
      data: {
        ...error?.response?.data,
      },
    };
  }
};

/**
 * Verifies the input parameters
 */
const verifyInput = ({ method, url }) => {
  const ERRORS = {
    INVALID_METHOD: "A valid method field (string) must be provided",
    INVALID_URL: "A valid url field (string) must be provided",
  };

  if (typeof method !== "string") throw new Error(ERRORS.INVALID_METHOD);
  if (typeof url !== "string") throw new Error(ERRORS.INVALID_URL);
};

Screenshot